Grease-cup.



E. R. STODDARD GREASE 0UP.

APPLICATION FILED SEPT. 21, 1912.

1,1 1 3 5860 V I Patented 06$, 13, m4.

FZGJ.

F2615 Am EDGAR STODDARD. OE DETROIT, MICHIGAN.

GREASE-CUP.

Specification of Letters Patent.

Pawnee Oct. is, 1914.

Application filed September 21 1912. Serial No. 721.68

Be. it known that l, EDGAR S'ronnmn, a citizen of the United States of America, residing at Delroll', in the county of Wayne and State of lllirhigan, have invented certain new and useful improvements in GreaseCups. of which the following is a specii'ication, reference being had therein to the accompanyin drawing Grease cups comprising a screw cap andca base having a screwthrezuled nipple for attachment to ihe parito be lubricated, are commonly formed with a hexagonal neck portion connecting the nipple and base for the engagemenc of a wrench by means of which the base is turned and the nipple screwed into place. v

To facilitate manufacture and decrease the weight, the base is commonly formed up from slice": metal and in the process of forming, the'metal is weakened where the nipple joins the neck, thus making the cup subject to breakage at this point when a wrench is applied to the hexagonal neck port-ion, and if broken oil, greahdifliculty is experienced in removing -she nipple from the opening into whicn it has been screwed.

The object this invention is to obviate these and other ob ections and to provide a cup of minimum length, thus taking up a small space and decreasing the liability of breakage.

A further ohjec; is to cheapen the manufacture and to provide certain new and use: in features in the construction} all as her-cinafter se'i forth and more particularly pointed out in the claim. referencebeing had to the. accompanying drawing in which- Figure 1 is a side elevation of a grease cup embodying the invention; Fig. 2 is a vertical section throi'lgh the same; Fig. 3 is a side elevation of the base of the cup decached; and Fig l is a transverse section I on the line IV of Fig. 2.

I The grease cup shown in the drawing comprises a cap portion land a base portion 2,

the cap being internally screwthreadcd to engage an external screwthread 3 on the body of the base. The cap may be formed in any desired manner and forms no part of this invention, said invention being embodied in the construction of the base of the cup, which part comprises a cup-shaped body, the vertical annular flange or rim 4 of which is formed with the external thread The base has an inclined bottom a, and an externally scrowthreaded nipple (i is formed integral with the bottom 5 axially thereof, to engage a screwthreaded opening in any machine or part to be lubriated and support the cup in position for use. The nipple 6 is formed hollow with an end wall 7 closing its lower end and this wall is provided with an axial discharge opening 8 for the escape of the lubricant from the cup as the cap is turned down lhereon and the grease pressed down into the base. The side wall of the nipple is preferably interiorly formed hexagonal in cross section, that is, it is formed with interior fiat faces 9 for the engagement of a tool or bar (not shown) formed to fit therein for turning t base and screwing the nipple into the opening to which the cup is't-o be applied.

\Vhile the nipple is shown as interiorly formed hexagonal in cross section, it will be understood that it'may be interiorly formed in any desired manner for the engagement therein of any suitable tool for turnin the cup. This interior formation of the nipple thus forms the sole means for turning the base in placing the cup in position for use and the power is thus applied direct y to the nipple in such a manner that there is no possibility of breaking the cup. Should the cup be knocked off in use, breaking the body of the base from the upper end of the nipple, said nipple may be very readily takenout by applying thetool to the interior thereof.

A cup having a minimum over-all length is also provided by this construction thus making it applicable for use in a small space and greatly reducing the liability of its being broken off in use.

As is the common practice in the manufacture of grease cups, these cups, for the purpose of cheapness, lightness and facility of manufacture, are formed from sheet metal by means of dies and it is obvious that a base constructed as shown, may be formed up in this manner with the minimum number of separate operations.

Obvioii ly, changes may be made in the form and constructionv of the parts of the cup without departing from the spirit of my invention which consists in interiorly forming the nipple of a grease cup. or like device, for die engagement of a tool therewith for -turning the same. and I do not limit myself to the particular construction or arrangement shown.

Havin thus fully described my invention what I c eini is:-

As a new article 'of manufacture, a base for grease cups stamped and drawn from sheet metal and comprising a conical bottom wall hevinge concentric depressed gortion that is formed when drawn from semi bot- -t0m;t0 provide inner biong facets and an ontercyiindrical side, said depressed per- .10 -(zion constituting a nipple which has an end wall' provided withe' small concentric cpen- 'ing, said end Well being disposed at right angles to the facets-to limit the inward iweee movement of a tool pieced in engagement with said facets, and the side Walls (if-said nipple bein relatively thicker than said bettom wall, w ereby the enter cylindrical side can be screw threaded Without materially weakening the nipple m; the angles cf the facets thereef.

In testimony whereof I ei'fix my signature in presence of two witnesses;

EDGAR R. STODDARD. Witnesses:

Lewis E. FLANDERB ANNA M. Donn. 

